But it was in the late '60s that inflatable furniture really became big thanks to a designer named Quasar Khanh. This photo is from 1968.

And by 1970, Quasar furniture was apparently on display at the MoMA in NYC and the Louvre in Paris.

A groovy girl looks predictably uncomfortable on an inflatable ball chair in 1969.

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In 1969, an Italian designer named Gaetano Pesce produced a line of furniture that was constructed mostly from vacuum-packed foam. When released from the box, the chair would let in air, expanding on its own.